From mboxrd@z Thu Jan 1 00:00:00 1970 Path: main.gmane.org!not-for-mail From: Rob Browning Newsgroups: gmane.lisp.guile.devel Subject: Re: scm_i_fraction_reduce thread safety Date: Thu, 29 Jan 2004 14:32:43 -0600 Sender: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Message-ID: <87ptd2v6l0.fsf@raven.i.defaultvalue.org> References: <3FD85844.3060108@ccrma> <1071170342.1217.60.camel@flare> <87wu91mxhf.fsf@zip.com.au> <87k73z1la9.fsf@zagadka.ping.de> <87ad4ve61r.fsf@zip.com.au> <87hdz3xocn.fsf@zagadka.ping.de> <87zncuat0g.fsf@zip.com.au> <87ektukw66.fsf@zagadka.ping.de> <1074654679.3851.30.camel@flare> <4016E30B.4060207@dirk-herrmanns-seiten.de> <874quhdlfm.fsf@raven.i.defaultvalue.org> <87ekti7dka.fsf@zagadka.ping.de> NNTP-Posting-Host: deer.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1075408866 16654 80.91.224.253 (29 Jan 2004 20:41:06 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Thu, 29 Jan 2004 20:41:06 +0000 (UTC) Cc: Carl Witty , guile-devel@gnu.org, Marius Vollmer Original-X-From: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Thu Jan 29 21:40:59 2004 Return-path: Original-Received: from monty-python.gnu.org ([199.232.76.173]) by deer.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 1AmIyA-0004sa-00 for ; Thu, 29 Jan 2004 21:40:58 +0100 Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org) by monty-python.gnu.org with esmtp (Exim 4.24) id 1AmIxz-0004VW-3c for guile-devel@m.gmane.org; Thu, 29 Jan 2004 15:40:47 -0500 Original-Received: from list by monty-python.gnu.org with tmda-scanned (Exim 4.24) id 1AmIsY-0002rr-IO for guile-devel@gnu.org; Thu, 29 Jan 2004 15:35:10 -0500 Original-Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.24) id 1AmIrr-0002ZM-St for guile-devel@gnu.org; Thu, 29 Jan 2004 15:35:00 -0500 Original-Received: from [66.93.216.237] (helo=defaultvalue.org) by monty-python.gnu.org with esmtp (Exim 4.24) id 1AmIqI-0001li-EA for guile-devel@gnu.org; Thu, 29 Jan 2004 15:32:50 -0500 Original-Received: from raven.i.defaultvalue.org (raven.i.defaultvalue.org [192.168.1.7]) by defaultvalue.org (Postfix) with ESMTP id 60812403D; Thu, 29 Jan 2004 14:32:44 -0600 (CST) Original-Received: by raven.i.defaultvalue.org (Postfix, from userid 1000) id D4B5D81070; Thu, 29 Jan 2004 14:32:43 -0600 (CST) Original-To: Marius Vollmer In-Reply-To: <87ekti7dka.fsf@zagadka.ping.de> (Marius Vollmer's message of "Thu, 29 Jan 2004 20:35:49 +0100") User-Agent: Gnus/5.1006 (Gnus v5.10.6) Emacs/21.3 (gnu/linux) X-BeenThere: guile-devel@gnu.org X-Mailman-Version: 2.1.2 Precedence: list List-Id: Developers list for Guile, the GNU extensibility library List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Xref: main.gmane.org gmane.lisp.guile.devel:3332 X-Report-Spam: http://spam.gmane.org/gmane.lisp.guile.devel:3332 Marius Vollmer writes: > I don't have one ready, but I do very much want to have one before > 1.8. I need to decide for myself whether I would want to go for > full concurrency or for restricting us to a one-thread-at-a-time > model. > > Full concurrency is not a nice-model to program for, > one-thread-at-a-time wont be able to take advantage of multiple > processors. Though I can't actually say *how* we'd do it, another conceptual arrangement might be to allow an interpreter per-posix-thread. It's certainly not as transparent as full concurrency, and unless there were some reasonable way to have all the interpreters share a heap/GC without heading right back into the problems related to full-concurrency, then people would have to structure their solutions to explicitly pass data between interpreters. Again, though, I haven't thought about this enough to have any real idea if this is even remotely feasible. -- Rob Browning rlb @defaultvalue.org and @debian.org; previously @cs.utexas.edu GPG starting 2002-11-03 = 14DD 432F AE39 534D B592 F9A0 25C8 D377 8C7E 73A4 _______________________________________________ Guile-devel mailing list Guile-devel@gnu.org http://mail.gnu.org/mailman/listinfo/guile-devel